Find a single discount equivalent to two successive discounts of 10 percent and 20 percent.
A27%
B28% ✓ Correct
C30%
D25%
Correct answer: (B) 28%
Explanation
The single equivalent discount is 28%.
Remaining after 10% = 0.90 of price.
Remaining after 20% = 0.80 of that.
Net factor = 0.90 x 0.80 = 0.72.
Discount = 1 - 0.72 = 0.28 = 28%.
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